Motorized Rotation Stage, Compact, 360°, 4°/s, DC Servo Motor

The SR50CC Compact Rotation Stage is designed to rotate optical components up to 1 inch diameter, such as polarizers, wave plates, or wedges. The small size allows use in confined spaces, such as laser cavities, disk texturing machines, or manufacturing areas for fiber optical components. The lightweight, low profile design incorporates an aluminum body with pre-loaded ball bearings. This proprietary ball bearing design provides smooth rotation with minimal wobble. A precision ground worm gear produces consistent driving torque to the rotating carriage and eliminates variations in motor current. The motor is folded inside the stage body to give an extremely small footprint for a stage at this level of precision. The SR50CC stage features an angular resolution of 0.001° achieved with a DC Servo motor. The stages are equipped with a hardware origin allowing the stage to return to a reference home position to within 0.01°. SR50 stages can run in continuous rotation mode.

Vertical Mounting

The optional bracket can be used for vertical mounting of a PR50 or SR50 stage.

Two PR50 stages with an EQ45.

Central Aperture

The central aperture of SR50 and PR50 stages is 1.063-20 threaded. Each stage is shipped with two retaining rings to allow mounting of any Ø25.4 mm diameter optics within the aperture. Four M3 holes allow for attachment of custom top plates.

SR50 with its two retaining rings

Proprietary Ball Bearing Design

The lightweight, low profile design incorporates an aluminum body with pre-loaded ball bearings. This proprietary ball bearing design provides smooth rotation with minimal wobble. A precision ground worm gear produces consistent driving torque to the rotating carriage and eliminates variations in motor current.

Specifications

Technical Specs

Optic Diameter
25.4 mm
Aperture Diameter
25.7 mm
Angular Range
360°
Maximum Speed
4°/s
Maximum Torque
0.4 Nm
Minimum Incremental Motion
4.0 mdeg
Centered Load Capacity
30 N
Accuracy, Typical
±15 mdeg
Accuracy, Guaranteed
±30 mdeg
Uni-directional Repeatability, Typical
±2.5 mdeg
Uni-directional Repeatability, Guaranteed
±5.0 mdeg
Bi-directional Repeatability, Typical
±15 mdeg
Bi-directional Repeatability, Guaranteed
±25 mdeg
Wobble, Typical
±20 µrad
Wobble, Guaranteed
±50 µrad
Inertia
0.015 kg.m²
Reduction Gear
107.143:1
Drive Mechanism
Ground worm gear
Transversal Compliance
160 µrad/Nm

Bearings
Proprietary, pre-loaded ball bearings
Motor
DC Servo
Origin Repeatability
±25 mdeg
Worm Gear Ratio
1:70
Origin
Optical
Cable Length
3 m
Thread Type
M3
Feedback
Motor-mounted rotary encoder
Encoder Resolution
48 pts/rev
Weight
0.3 kg
MTBF
10,000 h (25% load, 30% Duty cycle)
Base Material
Aluminum
Retaining Ring
2 Included
Retaining Ring Thread
1.063-20
Connector Type
SUB-D25
Compliance
RoHS 3, CE
Maximum Power Consumption
10 W

Optic Diameter
25.4 mm
Aperture Diameter
25.7 mm
Angular Range
360°
Maximum Speed
4°/s
Maximum Torque
0.4 Nm
Minimum Incremental Motion
4.0 mdeg
Centered Load Capacity
30 N
Accuracy, Typical
±15 mdeg
Accuracy, Guaranteed
±30 mdeg
Uni-directional Repeatability, Typical
±2.5 mdeg
Uni-directional Repeatability, Guaranteed
±5.0 mdeg
Bi-directional Repeatability, Typical
±15 mdeg
Bi-directional Repeatability, Guaranteed
±25 mdeg
Wobble, Typical
±20 µrad
Wobble, Guaranteed
±50 µrad
Inertia
0.015 kg.m²
Reduction Gear
107.143:1
Drive Mechanism
Ground worm gear
Transversal Compliance
160 µrad/Nm

Bearings
Proprietary, pre-loaded ball bearings
Motor
DC Servo
Origin Repeatability
±25 mdeg
Worm Gear Ratio
1:70
Origin
Optical
Cable Length
3 m
Thread Type
M3
Feedback
Motor-mounted rotary encoder
Encoder Resolution
48 pts/rev
Weight
0.3 kg
MTBF
10,000 h (25% load, 30% Duty cycle)
Base Material
Aluminum
Retaining Ring
2 Included
Retaining Ring Thread
1.063-20
Connector Type
SUB-D25
Compliance
RoHS 3, CE
Maximum Power Consumption
10 W

Resources & Downloads

Application Notes

Computer Controlled Variable Attenuator for Tunable Lasers(861.7 kB, PDF)

Drawings And Cad

SR50(407.3 kB, PDF)

Manuals

SR50 Rotation Stage User's Manual(1.2 MB, PDF)

Literature

SR50 Data Sheet.pdf(1.3 MB, PDF)

Related Products

Frequently Purchased Together

Description	Compatibility	Price
XPS-DRV11Motion Controller Card, Universal, Stepper, DC, and Linear Motors	UNIVERSAL	$856
TRA6CCMotorized Actuator, Miniature, 6 mm Travel, DC Servo Motor	UNIVERSAL	$1,044
SMC100CCMotion Controller, Single-axis DC Motor	UNIVERSAL	$1,383
ESP302-3NMotion Controller & Driver, 3-Axis, Ethernet, RS232	UNIVERSAL	$5,853
SMC-PS80Power Supply, SMC100 Series, 80W, 100-240 VAC, 47-63 Hz, 1.9 A max.	UNIVERSAL	$176
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Compatible Controllers

Based on axis required, choose a specific controller to pair with the stage. Along with an XPS-D or XPS-RLD controller, a driver module is required.

Description	Compatibility	Price
xps-d-universal-motion-controller¹XPS-D Universal High-Performance 1-8 Axis Motion Controller and Driver	UNIVERSAL
xps-rl-universal-high-performance-motion-controller²XPS-RLD Universal High-Performance 1-4 Axis Motion Controller and Driver	UNIVERSAL
esp301-3-axis-dc-and-stepper-motion-controllerESP302 3-Axis DC and Stepper Motion Controller	UNIVERSAL
SMC100CCMotion Controller, Single-axis DC Motor	UNIVERSAL	$1,383

Notes:

Requires XPS-DRV01 driver module.
Requires XPS-DRV01 driver module. Plug XPS-DRV01 into slots other than slot 1.

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